Doogan Corporation makes a product with the following standard costs:

$\backslash$table$[[,\backslash$table$[[$Standard Quantity or$],[$Hours$]],$Standard Price or Rate,,$],[$Direct materials,$20,$grams,$$7\mathrm{.}00,$per gram$],[$Direct labor,$1\mathrm{.}6,$hours,$$14\mathrm{.}00,$per hour$],[$Variable overhead,$1\mathrm{.}6,$hours,$$2\mathrm{.}00,$per hour$]]$

The company produced $4,600$ units in January using $10,220$ grams of direct material and $2,200$ direct labor$-$hours. During the month, the company purchased $10,790$ grams of the direct material at $$7\mathrm{.}40$ per gram. The actual direct labor rate was $$14\mathrm{.}50$ per hour and the actual variable overhead rate was $$1\mathrm{.}70$ per hour.

The company applies variable overhead on the basis of direct labor$-$hours. The direct materials purchases variance is computed when the materials are purchased.

The materials quantity variance for January is:

$$7140U$

$$7\mathrm{.}240F$

$$7,548U$

$$7,548F$